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Financial Instruments - Narrative (Details) - USD ($) $ in Millions | 6 Months Ended |
--- | --- | ---
Jun. 30, 2023 | Dec. 31, 2022
Interest rate contracts |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Derivative, aggregate notional value | $ 4,304 | $ 4,147
Net investment hedge contracts |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Derivative, aggregate notional value | 7,792 | $ 7,319
Net investment hedges | Net investment hedge contracts |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Derivative, aggregate notional value | 7,800 |
Cash flow hedges | Interest rate contracts |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Expected transfer of unrealized losses (net of taxes) for interest rate cash flow hedges to earnings during the next 12 months | $ 8 |
Hedged forecasted transaction period | 3 years 2 months |

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